In its Hero Form, Palafin's physiology drastically changes, gaining considerable muscle mass and becoming able to stand on its tail fins. Its body is primarily dark blue with white colorations on its lower jaw, belly, sides, dorsal fin, and the bottom of its tail fins. The heart-shaped marking on its chest grows larger to resemble a shield and a cetacean's tail fin. Parts of its body are covered with water, forming gloves, a cape or cowl, and three tail rings. Its eyes are also covered with water, evoking a mask.
